Facebook tags - ooops !

[glatt]

Originally Posted by Lamplighter

But I'm pretty sure this particular picture/caption was posted by the girl that "tagged" his name,
and I know she is not in my "family group". But my son-in-law is in my restricted group,
and yet I'm seeing it all (including the names of others that she "tagged").

Sounds like she posted the picture. It will say above the picture and also to the lower right of the picture whose picture it is. One of his friends tagged him. Maybe it was even her that tagged him. Usually the picture's owner does the tagging, but it can be any friend. Since he is your friend, you are seeing it.